title: An electron microscope study of chromosomal DNA replication in different eukaryotic systems.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D002645:Chickens; D002875:Chromosomes / Q000502:physiology / Q000648:ultrastructure*; D004261:DNA Replication; D004331:Drosophila melanogaster; D005260:Female; D008297:Male; D008854:Microscopy, Electron; D010944:Plants; D051381:Rats; D013045:Species Specificity; D014981:Xenopus